ML20059C689

Forwards LaSalle County Nuclear Power Station Unit 2,Cycle 4 Startup Test Rept & Test Rept Summary

ML20059C689
Person / Time
Site:	LaSalle
Issue date:	08/30/1990
From:	Morgan W COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20059C694	List: ML20059C689 ML20059C697
References
NUDOCS 9009050262
Download: ML20059C689 (2)

Text

_ . . _ . . -

s Comm!nnealth Edis n

. J__. / 1400 Opus Placs

.j- ,

Downers Grove, Illinois 60515 August 30,1990 .

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Subject:

LaSalle County Station Unit 2 Startup Test Report Summary NRC DochetNol0-3L4

Dear Sir:

Enclosed for your information and use is the LaSalie County Station Unit 2 Cycle 4 '

Startup Test Report Summary. This report is submitted in accordance with Technical s Specification NPF-18, Section 6.6.A.1.

LaSalle Unit 2 Cycle 4 began ecmmercial operation on June 12,1990 following a L refueling and maintenance outage. The Unit 2 Cycle 4 core loading consisted of 212 l'

Fresh GE 8x8 NB (GE 9B) fuel bundles and 552 reload bundles. The new fuel has an o,tn for multiple lattice types (i.e., axial zoned enrichment and gadolinla).

The startup test program was satisfactorily completed on August 13,1990. All test data was reviewed in accordance with the applicable test procedures and, exceptions to any results were evaluated to verify compliance with Technical Specification limits to ensure the acceptability of subsequent test results.

Attached are the evaluation results from the following tests: )

Core Verification )

Single Rod Subcritical Check i Control Rod Friction and Settle Testing 1 Control Rod Drive Timing Shutdown Margin Subcritical Demonstration Shutdown Margin Test (In-Sequence Critical) i Reactivity Anomaly Calculation (Critical and Full Power) l Scram insertion Times 1 Core Power Distribution Symmetry Analysis l If you have any additional questions concerning this matter, please contact this office.

, Very Truly Yours, ,

W.E Morgan f?,2"i Nuclear Licensing Administrator ZNLD/ID145 i cc: Regional Administrator - Region lli NRC Senior Resident Inspector - LSCS R. Pulsifer - Project Manager, NRR 90o90$O262 900830 DR ADOCK 0500 4 gg

'll

l 4-a TaAalle Unit 2 Ovele 4 Startun Test Recort SUledARY LaSalle Unit 2' Cycle 4 begst commercial operation on June 12, 1990 follewing a refueling and maintenance cstage. The Unit.2 Cycle 4 core loading consisted

t3 of 212 fresh GE8xBNB (GE9B) fuel bundles and 552 reload bundles. .The new fuel (GE98) has an option for multiple lattice types (i.e., axial zoned enrichment end gadolinia) and utilizes a single large central water rod which occupies I i.. the space of 4 fuel rods. In addition, 2 Westinghouse LPRM strings were 1 replaced with Reuter-Stokes NA 200 LPRM strings. No control blades were

. replaced for Unit 2 Cycle 4, however, 49 control blades were shuffled to optimize control blade lifetime.-

j. A comprehensive startup testing program was performed during startup and power ascension. The startup program included l - local and in-sequence shutdown margin tests.

- reactivity anomaly calculations at initial critical and full power.

- nuclear instrument performance verifications (S RM, IRM, APRM q response and overlap checks).

- instrument calibrations (LPRM, APRM, TIPS, core flow).

- control rod te friction and. full core scram timing.

- LPRM responn' co control rod movement.

.l - process computer verification, camparison to off-line calculation.

- recirculation system performance data.

- baseline stability data acquisition.

The startup test program was satisfactorily completed on August 13, 1990. All

. test data was reviewed in accordance with the applicable test procedures, and .

exceptions to any results were evaluated to verify' compliance with Technical Specification limits to ensure the acceptability of subsequent test results.

A startup test report must be submitted to the Nucleer Regulatory Commission (NRC) within 90 days following resumption of commercial power operation (in accordance with Technical Specification 6.6.A.1). The startup test report presented in this on-site review (Attachment B) contains results (evaluations)'

from the following test:

- Core Verification

- Single Rod Subcritical Check

- Control Rod' Friction and Settle Testing i - Control Rod Drive Timino

- Shutdown Margin Subcritical Demonstration

- Shutdown Margin Test (In-sequence critical) <

- Reactivity Anomaly Calculation (Critical and Full Power)

- Scram Insertion Times

- Core Power Distribution Symmetry Analysis A full evaluation of the startup test program is included with the evaluation of LTP-1600-37 (On-Site Review 90-24), Unit Startup Test Program. Data from each startup is available at LaSalle Station.

FINDINGS AND RL **QtI'ENDAT10HS Y Based upon the precediag discussion and the review of the startup test report,

, On-Site Review recomaends submittal of the "LaSalle County Nuclear Power

^

Station Unit 2 Cycle 4 Otartup lest Report" (Attachments B and C) to the NRC in accordance with Techrical Specification 6.6.A.l.

k a

4 k

-